ANZ has slashed its hardware bill by 25 per cent thanks to the use of public and private cloud services, according to the bank's general manager, consumer digital technology, Christian Venter.
"We buy [physical] infrastructure today and we size a box for its maximum capacity and then we pay depreciation on that for the next four years," he said. "The reality is - we don't use that capacity so that capacity's sitting wasted. With cloud we pay for what we use."
The increasing use of cloud has seen the bank consolidate its data centres - from 30 down to three regional facilities - and consequently realise power and space savings of more than 50 per cent. Server build times have gone from months to minutes, Venter told the CeBIT Cloud 2017 conference.
In addition to running pilots and test and dev work, the bank has a number of its digital assets running in production on cloud services, including its Shout donation platform, and sites such as Wealth Insights, Equal Future, School Ready, Market FX, Blue Notes and Business Ready.
The "banner use" for cloud is ANZ.com, Venter said. The site runs on Amazon Web Services: "When you go to the front door of ANZ, we host that on AWS now. We've shifted all of that from internal servers to cloud based servers."
The bank uses the Netflix-developed Chaos Monkey to test the resilience of its AWS infrastructure.
Currently traffic to ANZ.com is about 30 terabytes per month, peaking at 190MB per second with 300 requests a second.
"We expect that to probably double as we move more of our content on there," Venter said. "So we're serving this stuff at scale."
ANZ has a "big innovation ecosystem," the executive said. It includes university partners, strategic vendors, research bodies, fintechs, startup incubators and industry bodies as well as the bank's own internal labs. Across all those different categories, cloud capabilities are used to varying degrees.
In the case of its work with universities, the bank frequently relies on IBM Bluemix, while when partnering with fintechs it will typically turn to AWS. If ANZ's teams are working on sensitive prototypes, the bank will often rely on its internal cloud capabilities.
The bank leans heavily on AWS when it comes to public cloud, but is evaluating the capabilities offered by other platforms including Google Cloud and Microsoft's Azure.
ANZ uses the full gamut of infrastructure as a service, software as a service and platform as a service, but makes conscious decisions about where it deploys, Venter said.
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